TSA reveals confiscated weapons found in carry-on luggage

American Airlines contacted the passengers and directed them to return to JFK for customs processing. An official told The News on Sunday that 144 passengers had returned to the airport and gone through customs. The six that remain are all U.S. citizens, the official said.

American Airlines is working with Customs and Border Protection to ensure they "complete the process and to prevent this from happening in the future," the company also said in the statement.

The American Airlines flight arrived at JFK from Cancun, Mexico. (Mary Altaffer/AP)

"None of us went through immigration or customs," a passenger told The News, adding, "There were no signs for customs or anything. The only signs we saw were baggage claim and exit."

The passenger complained Saturday that agents have "been harassing me with phone calls — they're coming from high-up people at American Airlines, (Transportation Security Administration) and customs ... They're very aggressive." Another passenger also said that agents had been reaching out constantly.

American Airlines contacted the passengers and directed them to return to JFK for customs processing. (DelMundo, Anthony freelance NYDN/Anthony DelMundo)

A spokesman for the U.S. Customs and Border Protection, part of the Department of Homeland Security, said the agency is "aware of and looking into the incident and is working with our counterparts to resolve it."

The TSA, which screens passengers before they fly, declined comment, while the Port Authority said that the clearing of arriving international travelers is a federal responsibility. The airlines, it said, direct travelers to security areas.